<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>边框绘制特效</title>
    <link rel="stylesheet" href="./index.css">
</head>
<body>
    <div class="container">
        <div class="button-wrapper">
            <svg width='240' height="60">
                <rect class="rectangle" width="240" height="60"></rect>
            </svg>
            <div class="btn">按钮</div>
        </div>
    </div>
</body>
</html>